Game of Thrones S5 Trailer 02 - 49

And here we see that Tommen is accompanied by five of the Kingsguard, which means they’ve been replacing losses since season 2 (when Mandon Moore was killed and Sandor Clegane fled), since the other two Kingsguard at this point should be Jaime Lannister and Arys Oakheart or whoever took his role when Myrcella was shown departing for Dorne with a Kingsguard as her escort.